| 摘要 |
A touch screen device, according to the present invention, comprises: a first frame of which a plurality of optical transmission units are arranged in a line along a first direction and stacked in a third direction perpendicular to the first direction; a second frame facing the first frame and of which a plurality of optical reception units are arranged in a line along the first direction and stacked in the third direction; and a control unit connected to the first frame and the second frame so as to control the plurality of optical transmission units and the plurality of optical reception units to be operated, and detecting a touch position in a three-dimensional space from signals detected by the plurality of optical reception units. |
